ipasudorule: Evaluate all members related to hosts and users

When handling users and hosts is ipasudorule we were missing nome entry
attributes returned from FreeIPA, which would cause the add/del lists to
be incorrectly generated.

By adding the proper lists, both attributes are handled correctly.

A new test to verify the fix is added:

    tests/sudorule/test_sudorule_user_host_external.yml

Fixes https://issues.redhat.com/browse/RHEL-68439